/*
  spr-sdk: Statistical Pattern Recognition SDK
  Copyright (C) 2010 Marco Ambu

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _PR_CLASSIFIER_H
#define _PR_CLASSIFIER_H

#include "pr/Pattern.h"

namespace pr {

class Classifier
{
  public:
    virtual ~Classifier() {}
    
    virtual std::size_t classCount() const = 0;
    virtual std::size_t featureCount() const = 0;
    	
    virtual void train(const Pattern& trainingPattern, std::size_t classId) = 0;
    virtual std::size_t classify(const Pattern& testPattern) = 0;
    virtual bool test(const Pattern& testPattern, std::size_t classId) = 0;
    virtual bool rank(const Pattern& testPattern, std::size_t classId, std::size_t rank) = 0;
};

} // namespace pr

#endif // _PR_CLASSIFIER_H
